Patents by Inventor Leonard J. DeCant, Jr.
Leonard J. DeCant, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20120259290Abstract: Apparatuses and methods for coating and/or loading a medical device with a therapeutic agent prior to or during the placement of the medical device within the patient's body. In one variation, the medical device is coated and/or loaded with a therapeutic agent while the device is positioned in a delivery apparatus. In another variation, the delivery apparatus comprises a reservoir for retaining a therapeutic agent. The user may release the therapeutic agent from the reservoir prior to or during the placement of the device to coat and/or load the device with the therapeutic agent.Type: ApplicationFiled: June 15, 2012Publication date: October 11, 2012Applicant: C. R. Bard, Inc.Inventors: John D. MCDERMOTT, Alexander W. TESSMER, William R. BRATT, David G. SPILKA, Leonard J. DECANT, JR.
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Patent number: 8267954Abstract: An implantable vessel filter having an integrated sensing capability for monitoring the condition of the vessel filter. In one variation, the vessel filter comprises a plurality of legs that would themselves perform as a sensor device for detecting distention, which would indicate the presence of a clot or thrombus therein. A passive electrical circuit may be implemented on the vessel filter to receive electromagnetic energy and transmit signals indicative of the condition of the implanted vessel filter. In another variation, a miniaturized sensor is adapted for measuring the strain and/or other physical parameters of the filter legs.Type: GrantFiled: February 4, 2005Date of Patent: September 18, 2012Assignee: C. R. Bard, Inc.Inventors: Leonard J. Decant, Jr., Robert W. Kalis, David Micky Graves, David G. Spilka, Avijit Mukherjee, Daniel O. Almazan
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Patent number: 8206348Abstract: Apparatuses and methods for coating and/or loading a medical device with a therapeutic agent prior to or during the placement of the medical device within the patient's body. In one variation, the medical device is coated and/or loaded with a therapeutic agent while the device is positioned in a delivery apparatus. In another variation, the delivery apparatus comprises a reservoir for retaining a therapeutic agent. The user may release the therapeutic agent from the reservoir prior to or during the placement of the device to coat and/or load the device with the therapeutic agent.Type: GrantFiled: July 7, 2006Date of Patent: June 26, 2012Assignee: C. R. Bard, Inc.Inventors: John D. McDermott, Alexander W. Tessmer, William R. Bratt, David G. Spilka, Leonard J. Decant, Jr.
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Patent number: 7938795Abstract: A method of making a multi-lumen catheter includes forming a catheter body including a first lumen and a second lumen, and forming a catheter tip having a first channel terminating distally in a first opening on a first side of the catheter tip, and a second channel terminating distally in a second opening on a second side of the catheter tip opposite of the first side. The first and second openings of the catheter tip extend through an outer wall of the catheter tip to a dividing section. The catheter tip is affixed to the catheter body such that the first channel is aligned with the first lumen and the second channel is aligned with the second lumen.Type: GrantFiled: January 29, 2009Date of Patent: May 10, 2011Assignee: C. R. Bard, Inc.Inventors: Attilio E. DiFiore, Leonard J. Decant, Jr., Vincent J. Belusko
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Publication number: 20090126867Abstract: A method of making a multi-lumen catheter includes forming a catheter body including a first lumen and a second lumen, and forming a catheter tip having a first channel terminating distally in a first opening on a first side of the catheter tip, and a second channel terminating distally in a second opening on a second side of the catheter tip opposite of the first side. The first and second openings of the catheter tip extend through an outer wall of the catheter tip to a dividing section. The catheter tip is affixed to the catheter body such that the first channel is aligned with the first lumen and the second channel is aligned with the second lumen.Type: ApplicationFiled: January 29, 2009Publication date: May 21, 2009Applicant: C. R. Bard, Inc.Inventors: Leonard J. Decant, JR., Vincent J. Belusko, Attilio E. DiFiore
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Patent number: 6786884Abstract: An improved bolus tip design for use in a multi-lumen catheter for the simultaneous injection and withdrawal of fluids to and from a patient. The improved bolus tip has a rounded elongate body consisting of an interfacing section and a nose section. A first channel opens to a first bolus cavity, which is formed into the bolus tip, and a second channel either extends through the nose section of the bolus tip, forming an outlet therefrom, or terminates at a second bolus cavity similar to the first bolus cavity. In the latter configuration, the second bolus cavity is located longitudinally between the fist bolus cavity and a tip of the nose section on a side directly opposite the first bolus cavity. The second bolus cavity is in fluid communication with the second channel.Type: GrantFiled: October 29, 1999Date of Patent: September 7, 2004Assignee: Bard Access Systems, Inc.Inventors: Leonard J. DeCant, Jr., Vincent J. Belusko, Attilio E. DiFiore
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Patent number: 4447224Abstract: Implantable variable flow infusion apparatus comprises a collapsible infusate chamber having an outlet conduit leading to the infusion site by way of series-connected fixed and variable fluid flow restrictors. The infusate in the chamber is maintained under substantially constant pressure by a nonelectric energy storage cell to establish flow from the chamber to the site. The variable restrictor is controlled by commands from a preprogrammed microprocessor and programmable memory powered by a small long-lived battery. The processor sets the variable restrictor to the proper setting to establish the correct infusate flow for the particular time of day. A pressure transducer connected across the fixed restrictor senses the pressure differential across the fixed restrictor which differential indicates actual infusate flow from the chamber.Type: GrantFiled: September 20, 1982Date of Patent: May 8, 1984Assignee: Infusaid CorporationInventors: Leonard J. DeCant, Jr., Samir F. Idriss, Frank R. Prosl
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Patent number: 4443218Abstract: A programmable implantable infusion pump includes a housing containing a variable volume infusate chamber and variable volume control fluid pressure and displacement reservoirs. A conduit conducts infusate from the chamber exteriorly of the housing. A restricted fluid path exists between the two reservoirs which are filled with an incompressible control fluid. A loaded spring applies a constant force to the pressure reservoir causing fluid flow between the two reservoirs. The differential pressure across the flow restriction is sampled by a microprocessor which computes the fluid flow rate, that rate being proportional to the infusate flow rate from the chamber. When the fluid flow rate deviates from a programmed value, the processor issues an error command to a battery-driven motor which reloads the spring to reestablish the constant force on the pressure reservoir.Type: GrantFiled: September 9, 1982Date of Patent: April 17, 1984Assignee: Infusaid CorporationInventors: Leonard J. DeCant, Jr., Samir F. Idriss